FKIE_CVE-2025-68249

Vulnerability from fkie_nvd - Published: 2025-12-16 15:15 - Updated: 2026-10-14 13:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: most: usb: hdm_probe: Fix calling put_device() before device initialization The early error path in hdm_probe() can jump to err_free_mdev before &mdev->dev has been initialized with device_initialize(). Calling put_device(&mdev->dev) there triggers a device core WARN and ends up invoking kref_put(&kobj->kref, kobject_release) on an uninitialized kobject. In this path the private struct was only kmalloc'ed and the intended release is effectively kfree(mdev) anyway, so free it directly instead of calling put_device() on an uninitialized device. This removes the WARNING and fixes the pre-initialization error path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3509c748e79435d09e730673c8c100b7f0ebc87c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4af0eedbdb4df7936bf43a28e31af232744d2620
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d851f746067b8ee5bac9c262f326ace0a6ea253
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8cc9e5fcb0e2eef21513a4fec888f5712cb8162
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad2be44882716dc3589fbc5572cc13f88ead6b24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c400410fe0580dd6118ae8d60287ac9ce71a65fd
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/most/most_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3509c748e79435d09e730673c8c100b7f0ebc87c",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "ad2be44882716dc3589fbc5572cc13f88ead6b24",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "c400410fe0580dd6118ae8d60287ac9ce71a65fd",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "7d851f746067b8ee5bac9c262f326ace0a6ea253",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "4af0eedbdb4df7936bf43a28e31af232744d2620",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            },
            {
              "lessThan": "a8cc9e5fcb0e2eef21513a4fec888f5712cb8162",
              "status": "affected",
              "version": "97a6f772f36b7f52bcfa56a581bbd2470cffe23d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/most/most_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.246",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.115",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmost: usb: hdm_probe: Fix calling put_device() before device initialization\n\nThe early error path in hdm_probe() can jump to err_free_mdev before\n\u0026mdev-\u003edev has been initialized with device_initialize(). Calling\nput_device(\u0026mdev-\u003edev) there triggers a device core WARN and ends up\ninvoking kref_put(\u0026kobj-\u003ekref, kobject_release) on an uninitialized\nkobject.\n\nIn this path the private struct was only kmalloc\u0027ed and the intended\nrelease is effectively kfree(mdev) anyway, so free it directly instead\nof calling put_device() on an uninitialized device.\n\nThis removes the WARNING and fixes the pre-initialization error path."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmost: usb: hdm_probe: Corregir la llamada a put_device() antes de la inicializaci\u00f3n del dispositivo\n\nLa ruta de error temprana en hdm_probe() puede saltar a err_free_mdev antes de que \u0026mdev -\u003e dev haya sido inicializado con device_initialize(). Llamar a put_device(\u0026mdev -\u003e dev) all\u00ed dispara una ADVERTENCIA del n\u00facleo del dispositivo y termina invocando kref_put(\u0026kobj -\u003e kref, kobject_release) en un kobject no inicializado.\n\nEn esta ruta, a la estructura privada solo se le asign\u00f3 memoria con kmalloc y la liberaci\u00f3n prevista es efectivamente kfree(mdev) de todos modos, as\u00ed que lib\u00e9ralo directamente en lugar de llamar a put_device() en un dispositivo no inicializado.\n\nEsto elimina la ADVERTENCIA y corrige la ruta de error de pre-inicializaci\u00f3n."
    }
  ],
  "id": "CVE-2025-68249",
  "lastModified": "2026-10-14T13:10:00.187",
  "metrics": {},
  "published": "2025-12-16T15:15:54.193",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3509c748e79435d09e730673c8c100b7f0ebc87c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4af0eedbdb4df7936bf43a28e31af232744d2620"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7d851f746067b8ee5bac9c262f326ace0a6ea253"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a8cc9e5fcb0e2eef21513a4fec888f5712cb8162"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad2be44882716dc3589fbc5572cc13f88ead6b24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c400410fe0580dd6118ae8d60287ac9ce71a65fd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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